SE9502704D0 - Method and device for timing a signals for reception in a communication system with code-shared multi-user access - Google Patents

Method and device for timing a signals for reception in a communication system with code-shared multi-user access

Info

Publication number
SE9502704D0
SE9502704D0 SE9502704A SE9502704A SE9502704D0 SE 9502704 D0 SE9502704 D0 SE 9502704D0 SE 9502704 A SE9502704 A SE 9502704A SE 9502704 A SE9502704 A SE 9502704A SE 9502704 D0 SE9502704 D0 SE 9502704D0
Authority
SE
Sweden
Prior art keywords
signals
reception
timing
code
communication system
Prior art date
Application number
SE9502704A
Other languages
Swedish (sv)
Other versions
SE9502704L (en
SE521574C2 (en
Inventor
Eugene J Bruckert
Richard A Sonnentag
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of SE9502704D0 publication Critical patent/SE9502704D0/en
Publication of SE9502704L publication Critical patent/SE9502704L/en
Publication of SE521574C2 publication Critical patent/SE521574C2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/007—Detection of the synchronisation error by features other than the received signal transition detection of error based on maximum signal power, e.g. peak value, maximizing autocorrelation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A coherent reverse channel, a per-chip spreading function, orthogonal spreading functions and a time alignment of all traffic channels are implemented such that the main signal of each channel arrives at a base-station within a fraction of a chip of one another in accordance with the invention. With this, the orthogonality among all channels is maintained, and, when demodulated, all channels except the channel of interest provides a cross-correlation of substantially zero with respect to the remaining signals.
SE9502704A 1993-11-30 1995-07-27 Method and apparatus for timing signals for reception in a communication system with code-shared multi-user access SE521574C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/159,633 US5446727A (en) 1993-11-30 1993-11-30 Method and apparatus for time aligning signals for reception in a code-division multiple access communication system
PCT/US1994/012635 WO1995015626A1 (en) 1993-11-30 1994-11-03 Time alignment in a cdma system

Publications (3)

Publication Number Publication Date
SE9502704D0 true SE9502704D0 (en) 1995-07-27
SE9502704L SE9502704L (en) 1995-09-29
SE521574C2 SE521574C2 (en) 2003-11-11

Family

ID=22573340

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9502704A SE521574C2 (en) 1993-11-30 1995-07-27 Method and apparatus for timing signals for reception in a communication system with code-shared multi-user access

Country Status (13)

Country Link
US (1) US5446727A (en)
EP (1) EP0695484B1 (en)
JP (1) JP3565856B2 (en)
KR (1) KR0177268B1 (en)
CN (1) CN1065094C (en)
BR (1) BR9405751A (en)
DE (1) DE4499436B3 (en)
FI (1) FI112746B (en)
GB (1) GB2290200B (en)
RU (1) RU2122290C1 (en)
SE (1) SE521574C2 (en)
SG (1) SG69960A1 (en)
WO (1) WO1995015626A1 (en)

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Also Published As

Publication number Publication date
JP3565856B2 (en) 2004-09-15
JPH10508435A (en) 1998-08-18
SE9502704L (en) 1995-09-29
FI953407A (en) 1995-07-12
GB2290200B (en) 1998-07-22
WO1995015626A1 (en) 1995-06-08
KR960700595A (en) 1996-01-20
FI953407A0 (en) 1995-07-12
GB9515712D0 (en) 1995-10-11
KR0177268B1 (en) 1999-05-15
SG69960A1 (en) 2000-01-25
SE521574C2 (en) 2003-11-11
GB2290200A (en) 1995-12-13
DE4499436B3 (en) 2005-07-28
CN1116889A (en) 1996-02-14
EP0695484A4 (en) 1997-09-03
BR9405751A (en) 1995-12-05
EP0695484A1 (en) 1996-02-07
US5446727A (en) 1995-08-29
FI112746B (en) 2003-12-31
RU2122290C1 (en) 1998-11-20
EP0695484B1 (en) 2000-07-26
CN1065094C (en) 2001-04-25

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